A proper control strategy controlling the transient orbit element errors to realize the modulation of mean orbit element errors was given. 提出了合适的控制策略,通过对瞬时轨道要素偏差进行控制,实现平均轨道要素偏差的调整目的。
To meet the challenge of future mobile communication and integrated communication and radiolocation systems, a new quaternary 8 phases space time modulation technique with 36 element circular array antenna is proposed. 针对通信定位综合一体化的趋势和未来移动通信发展的需要,本文提出了一种新颖的四进制八相时空调制技术,设计了一种利用36元均匀间隔圆阵天线发射的通信定位综合化系统。
This paper presents a novel intrinsic fiber optical strain sensor based on intensity modulation for structures monitoring in smart material and structures, whose sensing element is formed directly on the multi mode fiber by twisted two or more fibers together. 研究了一种可用于机敏复合材料与结构状态监测的本征型强度调制光纤应变传感器,它由两根以上多模光纤相互缠绕绞合形成。
The operating principle of a bridge type Pulse Width Modulation ( PWM) power source, driving of switch element IGBT, overvoltage and overcurrent are briefly described in the paper. 概述了桥式脉冲宽度调制(PWM)功率源的工作原理,以及开关元件IGBT的驱动、过压、过流保护等问题。
Modulation effects of iron on mRNA expression of iron responsive element binding protein of lymphocytes 铁对淋巴细胞铁反应子结合蛋白表达的调节作用
The modulation of ASICs by Cu2+ Cu2+ is the essential element in human body and plays important roles in maintaining normal functions of the brain. Cu2+对ASICs的调控Cu2+是人体必需微量元素,对于维持正常的神经功能发挥重要的作用。
But the modulation mechanisms are strongly dependent on the doping element and metal. 但是,调控机理很强地依赖于掺杂元素及金属的类型。